What does costco.com track?
Before any consent, costco.com loaded 3 tracking companies and set 11 advertising or analytics cookies.
That's more tracking companies than 58% of the 2,450 sites we scanned.
Scanned October 2, 2026 from Germany, loading www.costco.com once and clicking nothing. How we scan
- Tracking companies
- 3
- Tracking cookies
- 11
- Third-party hosts
- 20
- Cookies in total
- 35
Consent banner
No known consent management platform was detected on the page.
Companies contacted before consent
4 of the 10 companies it contacted before consent were unclassified.
- Criteo34 requestsAdvertising
b.us5.us.criteo.com, d.us.criteo.com, gum.criteo.com, dynamic.criteo.com
- Adobe13 requestsAnalytics
assets.adobedtm.com, adobedc.demdex.net
- Dynatrace12 requestsAnalytics
bf47427jhn.bf.dynatrace.com, js-cdn.dynatrace.com
Other third parties (content delivery, consent, functional, unclassified)
- queue-it.net6 requestsUnclassified
static.queue-it.net, assets.queue-it.net
- costco-static.com3 requestsUnclassified
bfasset.costco-static.com
- intake-lr.com3 requestsUnclassified
cdn.intake-lr.com, r.intake-lr.com
- cdndex.io1 requestUnclassified
reporting.cdndex.io
- Transcend2 requestsConsent banner
transcend-cdn.com
- Google2 requestsFunctional
fonts.gstatic.com
- Cloudflare1 requestContent delivery
cloudflare.com
Cookies set before consent
The longest-lived tracking cookie it set was cto_bundle, from Criteo, lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| AMCV_97B21CFE5329614E0A490D45%40AdobeOrg | Advertising | costco.com | 13 months |
| cto_bundle | Advertising | criteo.com (third party) | 13 months |
| cto_bundle | Advertising | costco.com | 13 months |
| demdex | Advertising | demdex.net (third party) | 6 months |
| uid | Advertising | criteo.com (third party) | 13 months |
| ajs_anonymous_id | Analytics | costco.com | 12 months |
| dtCookie | Analytics | costco.com | Session |
| dtPC | Analytics | costco.com | Session |
| dtSa | Analytics | costco.com | Session |
| rxVisitor | Analytics | costco.com | Session |
| rxvt | Analytics | costco.com | Session |
| _lr_hb_-costco%2Fproduction-vrwno | Unclassified | www.costco.com | 1 day |
| _lr_tabs_-costco%2Fproduction-vrwno | Unclassified | www.costco.com | 1 day |
| adobeopt_exp | Unclassified | costco.com | 21 days |
| BCO | Unclassified | costco.com | Session |
| C_WHLOC | Unclassified | www.costco.com | 6 months |
| CriteoSessionUserId | Unclassified | www.costco.com | 30 days |
| f_as | Unclassified | costco.com | Session |
| f_as | Unclassified | www.costco.com | Session |
| invCheckCity | Unclassified | www.costco.com | 13 months |
| invCheckPostalCode | Unclassified | www.costco.com | 13 months |
| invCheckStateCode | Unclassified | www.costco.com | 13 months |
| kndctr_97B21CFE5329614E0A490D45_AdobeOrg_cluster | Unclassified | costco.com | Under a day |
| kndctr_97B21CFE5329614E0A490D45_AdobeOrg… | Unclassified | costco.com | 13 months |
| KP_UIDz | Unclassified | www.costco.com | 1 day |
| KP_UIDz-ssn | Unclassified | www.costco.com | 1 day |
| STORELOCATION | Unclassified | www.costco.com | 6 months |
| WAREHOUSEDELIVERY_WHS | Unclassified | www.costco.com | 1 day |
| WC_ACTIVEPOINTER | Unclassified | www.costco.com | Session |
| WC_AUTHENTICATION_-1002 | Unclassified | www.costco.com | Session |
| WC_GENERIC_ACTIVITYDATA | Unclassified | www.costco.com | Session |
| WC_PERSISTENT | Unclassified | www.costco.com | 14 days |
| WC_SESSION_ESTABLISHED | Unclassified | www.costco.com | Session |
| WC_USERACTIVITY_-1002 | Unclassified | www.costco.com | Session |
| JSESSIONID | Functional | www.costco.com | Session |
The page also wrote 18 keys to local storage, which works like a cookie but isn't sent with requests.
Understanding this page
- How to see which cookies and trackers a website loads
A hands-on walkthrough for checking what a site sets before you've clicked anything, using Chrome and Firefox's built-in tools, plus how CookieTosser automates the same check every month.
- What counts as valid cookie consent in the EU
The rules that actually govern cookie banners — the ePrivacy Directive, the GDPR consent standard, the Planet49 ruling, the strictly-necessary exemption, and what "reject" has to offer compared with "accept.
- Consent management platforms explained
What a CMP banner is actually doing behind the scenes, how the IAB's TCF standard and Google's Consent Mode v2 fit in, and why a banner being present is no guarantee that nothing loads before you answer it.